Evidence map›Paper›PMID 36366945›Full record

ArticleUltrasonography (Seoul, Korea)2023

Intra-individual comparison of liver stiffness measurements by magnetic resonance elastography and two-dimensional shear-wave elastography in 888 patients.

Hideo Ichikawa, Eisuke Yasuda, Takashi Kumada, Kenji Takeshima, Sadanobu Ogawa, Akikazu Tsunekawa, Tatsuya Goto, Koji Nakaya, Tomoyuki Akita, Junko Tanaka

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In one paragraph

Article in Ultrasonography (Seoul, Korea), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Hideo IchikawaDepartment of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan.
Eisuke YasudaDepartment of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan.
Takashi KumadaDepartment of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan.
Kenji TakeshimaDepartment of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan.
Sadanobu OgawaDepartment of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan.
Akikazu TsunekawaDepartment of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan.
Tatsuya GotoDepartment of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan.
Koji NakayaDepartment of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan.
Tomoyuki AkitaDepartment of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan.
Junko TanakaDepartment of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeQuantitative elastography methods, such as ultrasound two-dimensional shear-wave elastography (2D-SWE) and magnetic resonance elastography (MRE), are used to diagnose liver fibrosis. The present study compared liver stiffness determined by 2D-SWE and MRE within individuals and analyzed the degree of agreement between the two techniques.

methodsIn total, 888 patients who underwent 2D-SWE and MRE were analyzed. Bland-Altman analysis was performed after both types of measurements were log-transformed to a normal distribution and converted to a common set of units using linear regression analysis for differing scales. The expected limit of agreement (LoA) was defined as the square root of the sum of the squares of 2D-SWE and MRE precision. The percentage difference was expressed as (2D-SWEMRE)/ mean of the two methods×100.

resultsA Bland-Altman plot showed that the bias and upper and lower LoAs (ULoA and LLoA) were 0.0002 (95% confidence interval [CI], -0.0057 to 0.0061), 0.1747 (95% CI, 0.1646 to 0.1847), and -0.1743 (95% CI, -0.1843 to -0.1642), respectively. In terms of percentage difference, the mean, ULoA, and LLoA were -0.5944%, 19.8950%, and -21.0838%, respectively. The calculated expected LoA was 17.1178% (95% CI, 16.6353% to 17.6002%), and 789 of 888 patients (88.9%) had a percentage difference within the expected LoA. The intraclass correlation coefficient of the two methods indicated an almost perfect correlation (0.8231; 95% CI, 0.8006 to 0.8432; P<0.001).

conclusionBland-Altman analysis demonstrated that 2D-SWE and MRE were interchangeable within a clinically acceptable range.

Indexed as

Bland-Altman analysisIntraclass correlation coefficientMagnetic resonance elastographyProton density fat fractionTwo-dimensional shear-wave elastography

Identifiers

PMID36366945
PMCPMC9816707

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.